import java.util.Scanner;
public class Test {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int n =scan.nextInt();
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                if(i == j || i + j == n - 1) {
                    System.out.print('*');
                }else {
                    System.out.print(" ");
                }
            }
            System.out.println();
        }
    }
}
